参数资料
型号: TMP86CH09NG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP32
封装: 0.400 INCH, 1.78 MM PITCH, LEAD FREE, PLASTIC, SDIP-32
文件页数: 80/120页
文件大小: 1743K
代理商: TMP86CH09NG
Page 51
TMP86FH09ANG
5.2 P1 (P16 to P10) Port
The P1 port is a 7-bit input/output port that can be specified for input or output bitwise. The P1 Port Input/output
Control Register (P1CR) is used to specify this port for input or output. When reset, the P1CR register is initialized
to 0, with the P1 port set for input mode. The P1 port output latch is initialized to 0.
The P1 port is shared with external interrupt input and divider output. When using the P1 port as function pin, set
its input pins for input mode. For the output pins, first set their output latches to 1 before setting the pins for output
mode.
Note that the P11 pin is an external interrupt input. (When used as an output port, its interrupt latch is set at the ris-
ing or falling edge.) The P10 pin can be used as an input/output port or an external interrupt input by selecting its
function with the External Interrupt Control Register (INT0EN). When reset, the P10 pin is chosen to be an input
port.
Figure 5-3 P1 Port
P1DR
(0001H)
R/W
76
543
21
0
P16
P15
P14
P13
P12
DVO
P11
INT1
P10
INT0
(Initial value: ***0 0000)
P1CR
(0009H)
76
543
21
0
(Initial value: ***0 0000)
P1CR
Controls P1 port input/output
(specified bitwise)
0: Input mode
1: Output mode
R/W
Output latch
P1CRi
Data output (P1DR)
Output latch
P1CRi input
Control output
STOP
OUTEN
Data input (P1DR)
Control input
P1i
Note: i = 6 to 0
DQ
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